Zigbee end device not waking up in sleep mode

[Name]

Hey,

I have two problems regarding custom clusters and sleepy end devices. I want to create an SED that periodically sends custom long string messages (via attribute reporting) to a coordinator.

1.Question:

For this I implemented a custom cluster with a custom long string character attribute. For testing I only write to the attribute once the SED starts up.

enum ZclStatusCodeT status;
uint8_t Custom_str[255] = " PAYLOAD";
Custom_str[0] = 68; // length of string (ZCL format) LSB
Custom_str[1] = 0; // length of string (ZCL format) MSB
status = ZbZclAttrStringWriteLong(zigbee_app_info.custom_ls_server, MY_ZCL_DEV_LS, Custom_str);
APP_DBG("Attribute write status = %d", status);

This works as intended. My motivation to use the custom cluster was the ability to send long custom strings. If I change Custom_str[0] = 68; to Custom_str[0] = 100; the reporting stops and the message does not comes through (attributeWrite still successful). Fragmentation should be enabled by default in custom cluster, but apparently messages do not arrive in this configuration. Any hints on what might cause this issue are appreciated.

2.Question:

For the sleepiness of the end devices i oriented on the Zigbee_OnOff_Client_SED example. I enabled sleepy mode in the Zigbee Stack and made sure the following lines are present.

/* Enabling Stop mode */
UTIL_LPM_SetStopMode(1U << CFG_LPM_APP, UTIL_LPM_ENABLE);
UTIL_LPM_SetOffMode(1U << CFG_LPM_APP, UTIL_LPM_DISABLE);

Furthermore, NVIC configuration is the same. Despite this, the end devices do not wake up for performing the periodic long string attribute report. What might be the issue here?

Best regards and thanks for the help!

[Name]

Hey,

I got my hands on a Nucleo STM32WB55RGV6 MCU and tried to get a simple example with activated Zigbee and Log to run. USART1 is working fine via the debugger as long, as Zigbee is not activated in CubeMX. I tried switching on and off the recommended paramters from CFG_HW_USART1_ENABLED, but no output at all. Deactivating Zigbee results in the USART working fine again.

My configuration and (simple) code is appended below:

Best regards

[Ouadi]

Hi,

Please make sure to set the right settings on Zigbee CubeMX configurator, as an example you can have a look on the different examples activating Zigbee on our ST Github

Also, you have to flash your device with Zigbee M0 binary to be able to run zigbee stack.

Regards,

Ouadi

[Name]

Hey Ouadi,

Newest RFD Zigbee stack is flashed. I copied the settings from the Zigbee_OnOff_Client_SED example, including all pinout&config, clock, project manager. No output on the serial. I also tried uploading the example project directly, which gives compilation errors on two different machines (fresh cloned repository).

Best regards

[Ouadi]

Hi,

Zigbee SED application uses the Full Low Power mode with CFG_DEBUG_TRACE disabled by default as mentioned previously to save the consumption, You have to enable this setting to be able to activate the trace.

Kind regards,

Ouadi